class_docstr: Latent Variables Class
  
  Holds latent variable objects and contains method for latent variable manipulation. Latent variables are 
  referred to as z as shorthand. This is convention in much of the literature.
code: def set_z_starting_values(self, values):
      if values.shape[0] != len(self.z_list):
          raise ValueError(
              "Length of your array is not equal to number of latent variables"
          )
      for no in range(len(self.z_list)):
          self.z_list[no].start = values[no]
  
imports: import numpy
  import pandas
  from .covariances import acf
  from .output import TablePrinter
  from .inference import *
  from .families import Normal, t, TruncatedNormal, Cauchy, Skewt, InverseGamma, Flat, InverseWishart, Laplace
label_desc: Use image node_id 16 for calling the LatentVariables obj's underlying member method code with example usage: obj.set_z_starting_values(values) without return types